Food Processing – Dairy Industry
Bulla Dairy Foods
Regal Cream Products Pty Ltd
Solid (semi-solid) Waste was also generated as a by-product of the effluent treatment process which had to be isolated for off-site disposal, further increasing the costs to the company.Before Solutek Organic Concentrate was introduced to the effluent treatment process, residual Chemical Oxygen Demand/Biochemical Oxygen Demand, Total Kjeldahl Nitrogen and Suspended Solids were major concerns, extrapolating to a cost to the company.
The amount of residual Oils, Fats and Grease discharged to the sewage conveyance network behaved as an accumulating organic load (Oil and Grease raft accumulating in the aqueous phase within pump stations) leading to septicity, odour and corrosion issues within the pump wells and the network in general.
The effluent pit contained a heavy accumulation of fat and grease, negating the use of the submersible mixer used to maintain homogeneity in the pit.
Solutek Organic Concentrate was used to treat the Plant’s effluent. Within six weeks the oil, fat and grease layer in the effluent pit had been digested, allowing the use of the submersible mixer.
The balance tanks used to store the influent prior to treatment had also contained a substantial crust layer, which was minimised to a negligible layer, ensuring aerobic conditions within the plant.
After six weeks use, Bulla Dairy Foods decided to reduce the use of a coagulant in the waste water treatment process with no ill-effects; the coagulant dosing system has since been abandoned, saving the client a considerable expense.
Details and Outcomes
Elimination of dense floating organic rafts within the treatment plant tankage
Some of the information has been condensed in this article in order to provide an overview of the issues and the solution to the problems being addressed.
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